This bottle is intended for use as an essential oil
type bottle to be used with a vertical dropper cap (tipped
upside down to dispense by the drop)

For a bottle to go with a glass dropper cap
to make a 30 ml glass dropper bottle please see our 1 oz
Boston round bottles P015

Although there are some dispensing closures like sprayers
and pumps that fit these bottles, they are less than ideal and
need to be screwed down all the way, stretching over the TE
ring around the neck of the bottle. For best results please see
1 oz Boston round bottles for use with closures other
than the caps with vertical droppers